Microstructure and Some Mechanical Properties of Fly Ash Particulate Reinforced Aluminum Alloy Composites Prepared By Different Casting Procedures with and without Wetting Agents

Sharma , S S and Sharma, Sukanya M and Kumari, Rachana (2013) Microstructure and Some Mechanical Properties of Fly Ash Particulate Reinforced Aluminum Alloy Composites Prepared By Different Casting Procedures with and without Wetting Agents. In: National symposium ―Safety in process industries and chemical industries (Chemignite 2k13), October 25th-26th, MIT, Manipal.

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Abstract

Aluminum is a light weight metal which has abundant automobile and related structural applications. Fly ash is a very light weight industrial waste component. Fly ash has been proved to enhance the mechanical properties of aluminum. Up to 20% of fly ash in the aluminum alloy matrix is known to increase the strength and hardness and decrease wear of the Aluminum alloy if it is dispersed uniformly in the aluminum alloy matrix. This paper aims to investigate how the properties of the aluminum fly ash composite vary with the size and weight percentage of fly ash, method of casting and addition of other alloying elements. Due to a vast difference in their specific densities, it is very difficult to disperse the fly ash particulates in aluminum. To increase the wettability of fly ash, a small percentage of magnesium and silicon are added during the preparation stage of the composite. The specimens have been cast by two methods namely stir casting and compo casting. SEM is used to study the dispersion of the fly ash particulate in the microstructure for different casting methods. The present focus is to study the improved mechanical properties of the matrix alloy by introducing the waste (fly ash) into the matrix without additional financial burden. This composite may be competitive with expensive alloys in terms of properties suitable for the applications

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Casting, Wettability, Metal Matrix Composite (MMC), Aluminum Matrix Composite (AMC).
Subjects: Engineering > MIT Manipal > Chemical
Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 07 Nov 2013 11:32
Last Modified: 07 Nov 2013 11:32
URI: http://eprints.manipal.edu/id/eprint/137674

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